<?php

/**
 * This is the model class for table "telescopes".
 *
 * The followings are the available columns in table 'telescopes':
 * @property string $telescope_ID
 * @property string $name
 * @property double $aperture
 * @property double $focallength
 * @property string $magnification
 * @property string $filter
 *
 * The followings are the available model relations:
 * @property Observations[] $observations
 */
class Telescope extends CActiveRecord
{
	/**
	 * Returns the static model of the specified AR class.
	 * @param string $className active record class name.
	 * @return Telescope the static model class
	 */
	public static function model($className=__CLASS__)
	{
		return parent::model($className);
	}

	/**
	 * @return string the associated database table name
	 */
	public function tableName()
	{
		return 'telescopes';
	}

	/**
	 * @return array validation rules for model attributes.
	 */
	public function rules()
	{
		// NOTE: you should only define rules for those attributes that
		// will receive user inputs.
		return array(
            array('name, aperture, focallength, magnification, filter', 
                            'required'),
			array('aperture, focallength', 'numerical', 'min'=>0),
			array('name, filter', 'length', 'max'=>45),
			array('magnification', 'length', 'max'=>10),
			// The following rule is used by search().
			// Please remove those attributes that should not be searched.
			array('telescope_ID, name, aperture, focallength, magnification, filter', 'safe', 'on'=>'search'),
		);
	}

	/**
	 * @return array relational rules.
	 */
	public function relations()
	{
		// NOTE: you may need to adjust the relation name and the related
		// class name for the relations automatically generated below.
		return array(
			'observations' => array(self::HAS_MANY, 'Observations', 'telescope_ID'),
                        'users' => array(self::MANY_MANY, 'User', 'users_telescopes(telescope_ID, user_ID)'),
		);
	}

	/**
	 * @return array customized attribute labels (name=>label)
	 */
	public function attributeLabels()
	{
		return array(
			'telescope_ID' => 'Telescope',
			'name' => 'Naam',
			'aperture' => 'Diameter',
			'focallength' => 'Brandpuntsafstand',
			'magnification' => 'Vergroting',
			'filter' => 'Filter',
		);
	}

	/**
	 * Retrieves a list of models based on the current search/filter conditions.
	 * @return CActiveDataProvider the data provider that can return the models based on the search/filter conditions.
	 */
	public function search()
	{
		// Warning: Please modify the following code to remove attributes that
		// should not be searched.

		$criteria=new CDbCriteria;

		$criteria->compare('telescope_ID',$this->telescope_ID,true);
		$criteria->compare('name',$this->name,true);
		$criteria->compare('aperture',$this->aperture);
		$criteria->compare('focallength',$this->focallength);
		$criteria->compare('magnification',$this->magnification,true);
		$criteria->compare('filter',$this->filter,true);

		return new CActiveDataProvider($this, array(
			'criteria'=>$criteria,
		));
	}
}